User`s manual

22
HOW TO SEAL C TYPE JOINTS
After having completed assembly and testing, seal the joints which are placed at the entry of the various explosion proof components,
with a proprietary two part urethane rubber potting compound.
The resins must be prepared observing the proportions and times indicated by the manufacturer.
Handle these resins with care and avoid all direct contact with the skin. Store the ingredients in a cool dry place.
1) Unscrew the joint from position (1) and place it in position (2).
2) Put asbestos scraps (or similar fire-proof material) on the bottom and press them well between the two conductors
3) Pour in the sealing mixture which will have been prepared as described below.
4) Fill the joint up to the level of the lower thread for C type and until 1 mm under rim for D type
5) As soon as the mixture has become hard, replace cap and put the joint back in its original position (1).
Preparation of the mixture
A) Pour a small amount of the contents of the tin into a plastic cup.
B) Add the correct proportion of hardener.
C) Immediately mix well for about 30 seconds using a stick.
D) Pour the mixture over the joints immediately, before it hardens.
Mixing operations must be performed at an ambient temperature of 15
0
C or above.
“A” TYPE CABLE GLAND (SCREENED OR ARMORED ROUND CABLE)
1 - Body
2 – Inner rubber seal
3 – Armour locking rings
4 – Intermediate socket
5 – Outer rubber seal
6 – Anti-friction ring
7 - Head
WARNING:
The tightening of parts 1 (body), 4 (intermediate socket) and 7 (head) should be checked periodically.